Disclosed is a drive
system applicable to a large-
tonnage servo direct-driven hot die
forging press. The drive
system comprises four sets of drive mechanisms and two sets of actuating mechanisms. The drive mechanisms are in multilateral
layout, each set of the drive mechanism comprises a
servo motor, an output shaft of each
servo motor is connected with a large belt wheel through a small belt wheel and a drive belt, the outer side of each large belt wheel is connected with a
brake, and the inner side of each large belt wheel is connected with an input shaft of a planetary gear
reducer. Two sets of toggle link mechanisms are adopted as the actuating mechanisms, each set of toggle link mechanism is composed of a
crank, a triangular connecting link, an upper toggle link and a lower toggle link which are connected, output ends of the four planetary gear reducers are connected with two ends of the two cranks respectively, one end of each triangular connecting link is directly sleeved on the corresponding
crank, the upper end of each triangular connecting link is connected onto an upper crossbeam of the hot die
forging press through the corresponding upper toggle link, and the lower end of each triangular connecting link is connected with a slider through the corresponding lower toggle link and a guide
plunger type connecting link. By the drive
system, torque needed for
forging can be lowered remarkably, the requirement on
motor power is lowered, and
bearing capacity and working efficiency of the hot die forging press are improved.